Number of separate transaction in real estate acquisition.

No definition available.

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Period Type:	instant

- Definition

Payments to purchase real estate debt.

+ References

No definition available.

+ Details

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Namespace Prefix:	breit_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

The cash outflow from the acquisition of a piece of land, anything permanently fixed to it, including buildings, structures on it and so forth; includes real estate intended to generate income for the owner; excludes real estate acquired for use by the owner.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 13
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=121586364&loc=d3e3213-108585

+ Details

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Balance Type:	credit
Period Type:	duration

- Definition

The cash inflow from the additional capital contribution to the entity.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 14
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=121586364&loc=d3e3255-108585

+ Details

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Balance Type:	debit
Period Type:	duration

- Definition

Detail information of subsequent event by type. User is expected to use existing line items from elsewhere in the taxonomy as the primary line items for this disclosure, which is further associated with dimension and member elements pertaining to a subsequent event.

+ References

No definition available.

+ Details

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Subsequent Events - Additional Information (Detail) $ in Thousands	1 Months Ended	3 Months Ended
	May 13, 2021 USD ($) Transaction	Mar. 31, 2021 USD ($)	Mar. 31, 2020 USD ($)
Subsequent Event [Line Items]
Proceeds from issuance of common stock		$ 2,327,903	$ 4,232,000
Subsequent Event [Member]
Subsequent Event [Line Items]
Aggregate payments to acquire real estate, exclusive of closing costs	$ 540,900
Number of separate transaction in real estate acquisition \| Transaction	6
Aggregate payment to acquire real estate debt	$ 514,700
Proceeds from issuance of common stock	$ 3,500,000